0805b471k500nt參數(shù)信息：
基本參數(shù)：x7r 0805 470pf ±10% 50v，471k 50v x7r 0805
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0805b471k500nt: the ultimate x7r 0805 capacitor
introduction:
capacitors are electronic components that store and release electrical energy. they play a crucial role in various electronic circuits by smoothing out voltage fluctuations and providing stability. in this article, we will delve into the features and applications of the 0805b471k500nt capacitor, also known as the x7r 0805.
product attributes:
the 0805b471k500nt capacitor belongs to the x7r series, which is known for its excellent stability and reliability. it has a capacitance value of 470pf and a voltage rating of 50v. the 0805 refers to its package size, which is 0.08 x 0.05 inches (2.0 x 1.25 mm). the ±10% indicates the tolerance level, meaning the actual capacitance may vary within 10% of the stated value.
analysis of x7r dielectric:
the x7r dielectric is one of the most popular choices for capacitors due to its impressive electrical properties. it is a type of ceramic material that exhibits a low temperature coefficient, ensuring minimal changes in capacitance over a wide temperature range (-55°c to +125°c). this characteristic makes the 0805b471k500nt capacitor suitable for applications where operating temperatures may vary significantly.
additionally, the x7r dielectric offers a high dielectric constant, providing a high capacitance value in a compact package size. this feature is advantageous in space-constrained applications where miniaturization is critical. the low equivalent series resistance (esr) and equivalent series inductance (esl) further enhance the stability and performance of the capacitor.
applications:
the 0805b471k500nt capacitor finds extensive use in various electronic devices and systems. some notable applications include:
1. power supply filtering: in power supplies, capacitors are used to filter out high-frequency noise and voltage ripples, ensuring a smooth and stable output. the 0805b471k500nt's x7r dielectric, with its low esr and esl, effectively reduces noise and enhances the overall performance of power supply circuits.
2. decoupling in microprocessors: microprocessors and integrated circuits (ics) require stable power sources for optimal operation. the 0805b471k500nt capacitor, with its high dielectric constant, helps regulate the voltage by buffering transient fluctuations. this enables smooth and reliable operation of microprocessors by mitigating the effects of power supply noise.
3. timing circuits: capacitors play a critical role in timing circuits, especially in applications such as oscillators and timers. the stability and low temperature coefficient of the 0805b471k500nt capacitor make it an ideal component for precise timing applications, ensuring accurate and consistent results.
4. rf applications: radio frequency (rf) circuits demand capacitors with low losses and high stability. the x7r dielectric of the 0805b471k500nt excels in these areas, making it suitable for rf filters, matching networks, and other rf components.
example:
let's consider an example where the 0805b471k500nt capacitor is used in a car's engine control unit (ecu). the ecu is responsible for monitoring various parameters and controlling the engine's performance. to ensure accurate readings and reliable operation, stable power supply lines are essential.
here, the 0805b471k500nt capacitor is employed in the ecu's power supply filtering circuit. it effectively filters out any high-frequency noise generated by the electrical system, preventing disturbances that could compromise the ecu's functionality. with its x7r dielectric's low esr and esl, the capacitor ensures a steady and clean power supply to the ecu.
in conclusion, the 0805b471k500nt capacitor, known as the x7r 0805, stands out with its impressive attributes and versatile applications. i